{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:BNCVIQLGYW7HIRPWNT7E2E3TEY","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"b704837036176bf60fed8ae4cf9eb052788e455cc560bb1330da5d81702f47f8","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-14T18:02:15Z","title_canon_sha256":"9030a708b3836785427759734f9c059dcbfb8aac017c8b2ca206eec1e4777811"},"schema_version":"1.0","source":{"id":"1209.3269","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.3269","created_at":"2026-05-18T01:54:28Z"},{"alias_kind":"arxiv_version","alias_value":"1209.3269v1","created_at":"2026-05-18T01:54:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.3269","created_at":"2026-05-18T01:54:28Z"},{"alias_kind":"pith_short_12","alias_value":"BNCVIQLGYW7H","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"BNCVIQLGYW7HIRPW","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"BNCVIQLG","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:ce11e7245d2bc4a7f4a3d8246691ce347e7745c651e71595e42f62c8aba92073","target":"graph","created_at":"2026-05-18T01:54:28Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We present results from a deep Suzaku observation of the black hole in LMC X-1, supplemented by coincident monitoring with RXTE. We identify broad relativistic reflection features in a soft disc-dominated spectrum. A strong and variable power-law component of emission is present which we use to demonstrate that enhanced Comptonisation strengthens disc reflection. We constrain the spin parameter of the black hole by modelling LMC X-1's broad reflection features. For our primary and most comprehensive spectral model, we obtain a high value for the spin: a* = 0.97(+0.01,-0.13) (68 per cent confid","authors_text":"Andrew C. Fabian, James F. Steiner, Jeffrey E. McClintock, Jeremy S. Sanders, Laura W. Brenneman, Lijun Gou, Ronald A. Remillard, Rubens C. Reis, Ryan Cooke","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-14T18:02:15Z","title":"A Broad Iron Line in LMC X-1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.3269","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:b331657e9b0ecb2f3ca6e73b25f1125b198be30d884e5eec5a428e5774b0ca98","target":"record","created_at":"2026-05-18T01:54:28Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"b704837036176bf60fed8ae4cf9eb052788e455cc560bb1330da5d81702f47f8","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-14T18:02:15Z","title_canon_sha256":"9030a708b3836785427759734f9c059dcbfb8aac017c8b2ca206eec1e4777811"},"schema_version":"1.0","source":{"id":"1209.3269","kind":"arxiv","version":1}},"canonical_sha256":"0b45544166c5be7445f66cfe4d1373260ddb5746a708fd0d2bb6c96583d7602c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0b45544166c5be7445f66cfe4d1373260ddb5746a708fd0d2bb6c96583d7602c","first_computed_at":"2026-05-18T01:54:28.922250Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:28.922250Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l0qUKHJJZbKmmkIRk5dgCyRMYg24JlJ1LflyO7XuoS4eBIwFjI3Jb1EOl7GbzmgSpb5QVwIdyYqE+amjXdmRCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:28.922781Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.3269","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b331657e9b0ecb2f3ca6e73b25f1125b198be30d884e5eec5a428e5774b0ca98","sha256:ce11e7245d2bc4a7f4a3d8246691ce347e7745c651e71595e42f62c8aba92073"],"state_sha256":"15edb248505665acedb0b86b0ab8f988af44a5654cb3ae534de56847eb965bd9"}